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不同氯代物及烷基铝对稀土体系催化丁二烯聚合的影响
引用本文:赵春英,徐玲,仲崇祺,唐学明.不同氯代物及烷基铝对稀土体系催化丁二烯聚合的影响[J].青岛科技大学学报,1994(3).
作者姓名:赵春英  徐玲  仲崇祺  唐学明
摘    要:讨论了不同氯代物及烷基铝对丁二烯聚合的影响,以及不同的Cl/Nd比与活性、顺丁胶微观结构之问的关系。发现Nd(naph)3—氯代物—烷基铝体系的活性顺序为:AlEt2Cl,Al(i—Bu)2Cl,倍半异丁基氯化铝>氯硅烷≥烯丙基氯;Al(i—Bu)3》AlEt3;Cl/Nd比在3.5~7范围内活性几乎不变;不同氯代物、烷基铝及Cl/Nd比对产物的微观结构无明显影响,但对特性粘度[η](高聚物的分子量)影响较大。

关 键 词:稀土催化剂  氯代物  烷基铝  丁二烯聚合  催化活性

Effects of Different Chloride and Aluminium Alkyl on Butadiene Polymerization with Rare Earth Catalyst System
Zhao Chunying,Xu Ling,Zhong Chongqi,Tang Xueming.Effects of Different Chloride and Aluminium Alkyl on Butadiene Polymerization with Rare Earth Catalyst System[J].Journal of Qingdao University of Science and Technology:Natutral Science Edition,1994(3).
Authors:Zhao Chunying  Xu Ling  Zhong Chongqi  Tang Xueming
Affiliation:Department of Polymer material Engineering
Abstract:The effects of different chloride and aluminium alkyl on butadiene polymerization and the relationship between the ratio of Cl/Nd and the activity and microstructure were studied. The order of the activity of Nd (Naph)3 -chloride-cluminium catalyst system is AlEt2Cl, Al (i- Bu)2Cl,Ala(i- Bu )3 Cl≥(CH3 )4-n SiCln(n = 1,2,3,4)>CH2= CH-CH2Cl and Al (i-Bu)3>>AlEt3.When the ratio of Cl/Nd ranged from 3. 5 to 7,the activity hardly changed,Variation of chloride, aluminum and ratio of Cl/Nd had no apparent effect on PB microstructure,but its effect on η]was noticeable.
Keywords:rare earth catalyst  chloride  aluminitum  butadiene polymerization  catalytic activity
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